M031/M032
TABLE OF CONTENTS
1 GENERAL DESCRIPTION ............................................................................13
2 FEATURES....................................................................................................14
2.1 M031/M032 Features.................................................................................................. 14
3 PARTS INFORMATION.................................................................................22
3.1 Package Type .............................................................................................................. 22
3.2 M031/M032 Series Selection Guide......................................................................... 23
3.2.1 M031 Base Series (M031Fx / M031Ex / M031Tx) ....................................................23
3.2.2 M031 Base Series (M031Lx)........................................................................................24
3.2.3 M031 Base Series (M031Sx)........................................................................................25
3.2.4 M031 Base Series (M031Kx)........................................................................................26
3.2.5 M032 USB Series (M032Fx / M032Ex / M032Tx) .....................................................27
3.2.6 M032 USB Series (M032Lx).........................................................................................28
3.2.7 M032 USB Series (M032Sx).........................................................................................29
3.2.8 M032 USB Series (M032Kx).........................................................................................30
3.2.9 Naming Rule ...................................................................................................................31
3.3 M031/M032 Series Feature Comparison Table...................................................... 32
4 PIN CONFIGURATION ..................................................................................33
4.1 Pin Configuration......................................................................................................... 33
4.1.1 M031 Series Pin Diagram .............................................................................................33
4.1.2 M031 Series Multi-function Pin Diagram ....................................................................39
4.1.3 M032 Series Pin Diagram ...........................................................................................101
4.1.4 M032 Series Multi-function Pin Diagram ..................................................................107
4.2 Pin Mapping ............................................................................................................... 156
4.3 Pin Function Description .......................................................................................... 161
5 BLOCK DIAGRAM.......................................................................................167
6 FUNCTIONAL DESCRIPTION.....................................................................168
6.1 Arm® Cortex®-M0 Core............................................................................................. 168
6.2 Clock Controller ......................................................................................................... 170
6.2.1 Overview........................................................................................................................170
6.2.2 Clock Generator............................................................................................................172
6.2.3 System Clock and SysTick Clock...............................................................................174
6.2.4 Peripherals Clock .........................................................................................................176
6.2.5 Power-down Mode Clock ............................................................................................176
6.2.6 Clock Output .................................................................................................................177
6.2.7 USB Clock Source........................................................................................................177
6.3 System Manager ....................................................................................................... 179
6.3.1 Overview........................................................................................................................179
Sep. 29, 2020
Page 2 of 288
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